Agreement No

Duration: 01.06.2019 -31.05.2022

Scientific manager: Dr. chem. Edgars Suna

Responsible from the ISSP UL side: Dr. Phys. Aivars Vembris

Project partners: Latvian Institute of Organic Synthesis, Institute of Solid State Physics - University of Latvia

The proposed industrial research project aims at the development of a new type of LEC devices for the use in high-end smart lighting applications.

There are two mutually related goals of the project:

  1. development of purely organic solid-state emitters for LEC devices using a previously unreported approach to achieve aggregation induced emission (AIE). The design of AIE luminogens (AIEgens) will exploit interactions between heteroaromatic cationic p-systems to achieve solid-state luminescence, while avoiding aggregation caused quenching (ACQ);
  2. Design of LEC devices using the developed AIEgens. The active layer deposition parameters will be optimized. LEC devices will be fabricated from the optimized AIEgens and their electrical and electroluminescence properties will be investigated. AIEgens with the superior performance will be used in the ink-jet printing system.

Main activities:

  • Design and synthesis of novel AIEgens based on organic cation-aromatic p-system interactions;
  • Investigation of the photophysical, photoelectrical and thermal properties of the materials such as photoluminescence quantum yield, singlet and triplet energy, hole and electron transport energy levels as well as charge-transporting properties,
  • Design, optimization and fabrication of LEC prototypes using the developed AIE emitters

The proposed inter-disciplinary research project addresses the following OECD Fields of Science and Technology classification:  1.4. “Chemical Sciences”, 1.3. “Physical Sciences” and 2.5. “Materials engineering”. The project is related to economic activity and it complies with Latvian Smart Specialization Strategy in the Area “Smart materials, technology and engineering systems”. The project will be implemented by young scientists, PhD students and master degree students.

Project implementation place: Latvian Institute of Organic Synthesis (LIOS), Riga, Latvia. Project will be implemented in collaboration with Institute of Solid State Physics (ISSP), Riga, Latvia

The eligible costs of the project: EUR 731,733.76 (ERDF funding EUR 475,626.94)